Founded in 1984, Beijing Yizhong Weiye Chemical Co., Ltd. is located at the foot of Yanshan Mountain. Close to the extra large enterprise in China--- SINOPEC Yanshan Chemical Corporation, our company occupies a total area of 15,000 square meters. Our company has production area, living area and feedstock storage area.

Our company is a manufacturer of fine chemicals including petrochemical polymerization inhibitors, antioxidants, foaming agents and intermediate products, and is one of the drafters of antioxidant - Dydecyl thiopropionate.

We produce 7 products such as Dydecyl thiopropionate, 2,4-Dinitrophenol and 2,6-Dinitro-4-methylphenol. We have obtained import and export authority, and most of our products are exported to Europe, Japan and so on. The annual output of 3,3-Thiodipropionic acid is 1,000t, and that of 2,4-Dinitrophenol is 2,000t.

Quality policy of our company is: quality first, clients supreme. We keep improving quality target and quality management system. In 2003, our company was registered to GB/T19001:2000 idt ISO9001:2000 quality management system certification. Now, operated according to GB/T19001:2000 idt ISO9001:2000 quality management system certification, our company has improved manufacturing technique, reduced production cost, improved product quality and strengthened enterprise's competitive power.